Hadith of Day

'0 you people! Have Taqwa of Allah.
If a mutilated Ethiopian slave is put in command over you,
then listen to him and obey him, as long as he upholds the Book of Allah among you." (sahih) Jami-at-Tirmidhi-vol-3-ahadith-1205-1896.pdf (page 441) 20. The Chapters On The Virtues Of Jihad
The Messenger of ALLAH : there are five things with which you will be tested, and I seek refuge with ALLAH C.C. lest you live to see them: Immorality never appears among a people to such an extent that they commit it openly, but plagues and diseases that were never known among the predecessors will spread among them. They do not cheat in weights and measures but they will be stricken with famine, severe calamity and the oppression of their rulers. They do not withhold the Zakah of their wealth, but rain will be
withheld from the sky, and were it not for the animals, no rain would fall on them. They do not break their covenant with ALLAH C.C. and His Messenger, but ALLAH C.C. will enable their enemies to overpower them and take some of what is in their hands. Unless their leaders rule according to the Book of ALLAH C.C. and seek all good from that which ALLAH C.C. has revealed, ALLAH C.C. will cause them to fight one another.( (Sahih) sunan-ibn-majah-volume-5 page 222 )
When the companions of the prophet had a disagreement they wouldn't act upon any of their words but search for a proof from books or sunah (translated from sahih-i muslim tercüme ve şerhi -Ahmed Davutoglu- 6.cilt shf:371)